Cockroaches as vectors of hookworms on gold mines of the Witwatersrand
By: by Annie Porter.
Publisher: Townshend, Taylor & Snashall, printers
Published: 1930
Place of publication: Cape Town
Language: eng
Subjects: Hookworm disease -- South Africa.; Cockroaches as carriers of disease.; Gold mines and mining -- South Africa -- Witwatersrand.
Other titles: Journal of the Medical Association of South Africa.
Notes: 'Reprinted from The journal of the Medical Association of South Africa, Vo.IV, pp. 18-20, January 11th, 1930' - cover.

Cover title.